Yoldia (Kalayoldia) oregona

Yoldia oregona (Shumard, 1858), a relative of Yoldia (Kalayoldia) oregona — not Yoldia (Kalayoldia) oregona itself

Not Yoldia (Kalayoldia) oregona. This is Yoldia oregona (Shumard, 1858), a relative — both are Yoldiidae.

via GBIF · CC BY 4.0 · via GBIF. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
Yoldia (Kalayoldia)PBDB
Diet
deposit feederPBDB, for Yoldia
Life habit
infaunalPBDB, for Yoldia
Motility
facultatively mobilePBDB, for Yoldia
Vision
blindPBDB, for Bivalvia
Environment
inner shelf,outer shelf,oceanicPBDB, for Yoldiidae

Time the record covers

At least 28 million years on record.

The record covers at least 33.9 Mya to 5.333 Mya. No occurrence read is dated outside 37.71 Mya to 3.6 Mya.

Eocene — about 9 of 20 occurrencesEoceneOligocene — about 8 of 20 occurrencesOligoceneMiocene — about 2 of 20 occurrencesMiocenePliocene — about 1 of 20 occurrences38–37 Mya — about 1 occurrence37–36 Mya — about 3 occurrences36–35 Mya — about 3 occurrences35–34 Mya — about 2 occurrences34–32 Mya — about 0.7 occurrences32–31 Mya — about 0.7 occurrences31–30 Mya — about 0.7 occurrences30–29 Mya — about 0.7 occurrences29–28 Mya — about 0.7 occurrences28–27 Mya — about 1.0 occurrences27–25 Mya — about 1 occurrence25–24 Mya — about 1 occurrence24–23 Mya — about 1 occurrence17–16 Mya — about 0.0 occurrences16–15 Mya — about 0.5 occurrences15–14 Mya — about 0.4 occurrences12–11 Mya — about 0.1 occurrences11–10 Mya — about 0.2 occurrences10–8.8 Mya — about 0.2 occurrences8.8–7.6 Mya — about 0.2 occurrences7.6–6.5 Mya — about 0.2 occurrences6.5–5.3 Mya — about 0.2 occurrences5.3–4.1 Mya — about 0.7 occurrences4.1–2.9 Mya — about 0.3 occurrences33.9 Mya5.333 Mya38.4 Mya2.9 Mya

20 occurrences of Yoldia (Kalayoldia) oregona on record. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

20 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Found in

4 formations

Eugene — 44.06°N, 123.22°WEugene — 44.05°N, 123.09°WEugene — 45.21°N, 123.20°WEugene — 44.04°N, 123.06°WEugene — 44.94°N, 123.03°WEugene — 44.88°N, 123.13°WPittsburg Bluff — 45.86°N, 123.19°WPittsburg Bluff — 46.13°N, 123.37°WPittsburg Bluff — 45.69°N, 123.19°WPittsburg Bluff — 45.46°N, 123.12°WPittsburg Bluff — 46.00°N, 123.26°WPittsburg Bluff — 45.83°N, 123.98°WEmpire — 43.39°N, 124.28°WRound Mountain — 35.43°N, 118.80°W

Loading coastlines…

The named rock units Yoldia (Kalayoldia) oregona has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Found in the same rock

151 taxa

The Paleobiology Database records 18 sites for Yoldia (Kalayoldia) oregona, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

6 references

Each of the 20 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Yoldia oregona (Shumard, 1858)

Source
GBIF
Credit
via GBIF
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Yoldia (Kalayoldia) oregona was found in MorphoSource and Sketchfab.

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itYoldia (Kalayoldia) through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Shumard 1858)